--- sidebar_label: BrowserLaunchArgumentOptions --- # BrowserLaunchArgumentOptions interface Launcher options that only apply to Chrome. #### Signature: ```typescript export interface BrowserLaunchArgumentOptions ``` ## Properties | Property | Modifiers | Type | Description | Default | | ------------- | --------------------- | ------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------ | | args | optional | string\[\] | Additional command line arguments to pass to the browser instance. | | | debuggingPort | optional | number | Specify the debugging port number to use | | | devtools | optional | boolean | Whether to auto-open a DevTools panel for each tab. If this is set to true, then headless will be forced to false. | false | | headless | optional | boolean \| 'shell' | Whether to run the browser in headless mode. | true | | userDataDir | optional | string | Path to a user data directory. [see the Chromium docs](https://chromium.googlesource.com/chromium/src/+/refs/heads/main/docs/user_data_dir.md) for more info. | |